Golf putting aid attachment



FIG. 1 is a perspective view of a golf putting aid attachment showing my new design;

FIG. 2 is a rear elevation thereof;

FIG. 3 is a top plan view thereof; and

FIG. 4 is an end elevation thereof.

The broken lines showing of a golf club head in FIG. 1 is for illustrative purposes only. 

The ornamental design for a golf putting aid attachment, as shown and described. 